Target scene generator having a reconfigurable optical waveguide network for testing pulsed laser sensing apparatus
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United States of America Patent
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Dec 11, 2012
Grant Date -
Jan 27, 2011
app pub date -
Nov 10, 2009
filing date -
Nov 20, 2008
priority date (Note) -
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Abstract
A target scene generator for testing an imaging ladar in a Hard Ware in the Loop arrangement, such as might be employed for testing an optical seeker on a guided missile, the generator comprising an array of pixel elements, a photodetector for detecting incident light from a ladar a laser source for generating pulses of light representing returned ladar pulses, and a reconfigurable fiber network including an optical switch selectively coupling the laser to the pixel elements, and a controller which selectively reconfigures the fiber network, to present to selected pixel elements the pulses of light with selected time delay characteristics such that light emitted from the pixels represent light returned from a target illuminated by the ladar.
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